what was discovered in 1965 and is believed to be leftover thermal energy from the big bang?\no red shift\no…

what was discovered in 1965 and is believed to be leftover thermal energy from the big bang?\no red shift\no the eagle nebula\no the doppler effect\no background radiation

what was discovered in 1965 and is believed to be leftover thermal energy from the big bang?\no red shift\no the eagle nebula\no the doppler effect\no background radiation

Answer

Answer:

D. background radiation

Brief Explanations:

In 1965, Arno Penzias and Robert Wilson discovered cosmic microwave background radiation, thought to be leftover energy from the Big - Bang. Red - shift is related to the expansion of the universe, the Eagle Nebula is a star - forming region, and the Doppler effect is about frequency changes due to relative motion.